Hyundai Elantra: Troubleshooting - General Information - Emission Control System - Hyundai Elantra HD 2006Ц2010 Service ManualHyundai Elantra: Troubleshooting

Troubleshooting

Symptom
Suspect area
Remedy
Engine will not start or hard to start
Vacuum hose disconnected or damaged
Repair or replace
Malfunction of the Purge Control Solenoid Valve
Repair or replace
Rough idle or engine stalls
Vacuum hose disconnected or damaged
Repair or replace
Malfunction of the PCV valve
Replace
Malfunction of the evaporative emission canister purge system
Check the system; if there is a problem, check related components parts
Excessive oil consumption
Positive crankcase ventilation line clogged
Check positive crankcase ventilation system